动情少年亦冷心薄情少年亦冷心
[dòng qíng shăo nián yì lĕng xīn bó qíng shăo nián yì lĕng xīn]
The passionate young person's heart can also turn cold implies that even someone who appears full of emotion can become indifferent or hard-hearted over time, reflecting a shift from vulnerability to detachment, possibly due to life experiences or emotional wounds.